“…With respect to the former, our results suggest that opinions may return to “pretreatment” states even if factual beliefs remain updated. With respect to the latter, our results are in line with work in other (nonpolicy) areas that suggests opinions may be difficult to shift over the long-term (see, for example, Gerber, Gimpel, Green, & Shaw, 2011, on candidate choice), but that knowledge gains may persist for some, but not all, of the mass public (see, for example, Dowling & Miller, 2015, on perceptions of women’s chances of winning office). Our results therefore suggest that educating people about the contents of policies may not be enough to win their long-term support.…”